Home / 64,284.39-96,431.10-19,905.30

Finding the Fourth Proportional to 64,284.39, 96,431.10 and 19,905.30

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Solution

The fourth proportional to 64,284.39, 96,431.10 and 19,905.30 is: 29,859.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,284.39 : 96,431.10 = 19,905.30 : x
  2. Step 2: Convert to fraction form
    64,284.39/96,431.10 = 19,905.30/x
  3. Step 3: Cross multiply
    64,284.39x = 96,431.10 × 19,905.30
  4. Step 4: Simplify right side
    64,284.39x = 1,919,489,974.83
  5. Step 5: Solve for x
    x = 1,919,489,974.83/64,284.39
  6. Step 6: Final answer
    x = 29,859.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.